申请人:Meiji Seika Kaisha, Ltd.
公开号:US05075299A1
公开(公告)日:1991-12-24
Novel cephalosporin compounds represented by formula (I): ##STR1## wherein R.sup.1 represents a lower alkyl group which may optionally have a substituent; each of R.sup.2 and R.sup.3 independently represents a hydrogen atom or hydroxy group; and A represents a hydrogen atom or a residue of nucleophilic compound, and pharmacologically acceptable salts or esters thereof exhibit a potent antibacterial activity against gram positive and gram negative bacteria.
新型头孢菌素化合物,其代表性结构式为(I):##STR1## 其中R1代表可任选具有取代基的低级烷基;R2和R3各自独立代表氢原子或羟基;A代表氢原子或亲核化合物的残基,及其药理学上可接受的盐或酯,对革兰氏阳性菌和革兰氏阴性菌均显示出强大的抗菌活性。